Skip to Content
Merck
CN

C3143

Chromotrope 2R

Powder

Synonym(s):

2-(Phenylazo)chromotropic acid disodium salt, Acid Red 29

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C16H10N2Na2O8S2
CAS Number:
4197-07-3
Molecular Weight:
468.37
NACRES:
NA.47
PubChem Substance ID:
24892586
UNSPSC Code:
12171500
EC Number:
224-085-0
MDL number:
MFCD00003955
Colour Index Number:
16570

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Chromotrope 2R, suitable for modified Gomori Trichrome stain

form

powder

Quality Level

200

composition

Dye content, ≥70%

technique(s)

microbe id | staining: suitable

color

red to brown

solubility

H2O: 1 mg/mL, dark red

εmax

≥450 at 510-513 nm in methanol

suitability

suitable for modified Gomori Trichrome stain

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].Oc1cc(cc2cc(c(\N=N\c3ccccc3)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C16H12N2O8S2.2Na/c19-12-8-11(27(21,22)23)6-9-7-13(28(24,25)26)15(16(20)14(9)12)18-17-10-4-2-1-3-5-10;;/h1-8,19-20H,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2/b18-17+;;

InChI key

GXEAXHYQKZAJGB-QIKYXUGXSA-L

Related Categories

Application

Chromotrope 2R has been used in the Gomori trichrome staining in osteochondral tissues. It has also been used for the staining of eosinophils in lung sections.

Biochem/physiol Actions

Chromotrope 2R is used for the staining of microsporidia in body fluids and stool samples. It is used in modified Gomori′s trichrome staining. Chromotrope 2R has high affinity for phospholipids and is used for the staining of mitochondrial and endoplasmic reticulum membrane in histological samples.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBS7920
SHBS4713
SHBS1393
0000288168
SHBQ4639

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Bennett JE, et al.
Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases (2014)
Antigen sensitization influences organophosphorus pesticide-induced airway hyperreactivity.
Proskocil BJ, et al.
Environmental Health Perspectives, 116, 381-381 (2008)
Neuromuscular Disorders of Infancy, Childhood, and Adolescence (2014)
Chitosan-glycerol phosphate/blood implants increase cell recruitment, transient vascularization and subchondral bone remodeling in drilled cartilage defects.
Chevrier A, et al.
Osteoarthritis and Cartilage, 15, 316-316 (2007)
Ni Hui et al.
Amino acids, 38(3), 711-719 (2009-04-07)
The electrochemical behaviors of the interaction of chromotrope 2R (CH2R) with human serum albumin (HSA) are investigated on the hanging mercury drop electrode with linear sweep voltammetry. In the acidic buffer solution (pH 2.5) CH2R has a well-defined voltammetric reductive
View All Related Papers

Global Trade Item Number

SKUGTIN
C3143-100G04061835572229
C3143-25G04061835572236

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service